Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Jennersville's January weather reaches an average high of 36.9°F (2.7°C) and an average low of 24.6°F (-4.1°C), making it the coldest month.Humidity
In January, the average relative humidity in Jennersville is 76%.Rainfall
January, September and November are months with the least rain when the rain falls for 5.9 days and typically aggregates up to 0.87" (22mm) of rain.Snowfall
January through May, November and December are months with snowfall in Jennersville. In Jennersville, Pennsylvania, in January, snow falls for 5.1 days, with typically accumulated 1.18" (30mm) of snow. In Jennersville, during the entire year, snow falls for 15.4 days and aggregates up to 4.33" (110mm) of snow.Daylight
The average length of the day in January is 9h and 44min.On the first day of January in Jennersville, sunrise is at 7:24 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:21 pm EST.
Sunshine
In January, the average sunshine is 5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What time of the year is the coldest in Jennersville?
How cold is it in Jennersville in January?
What is the average humidity in January in Jennersville?
What is the driest month in Jennersville?
How many days does it rain in January in Jennersville?
How much does it snow in Jennersville in January?
What is the average length of the day in January in Jennersville?
When are sunrise and sunset in January in Jennersville?
How long on average sun shines in January in Jennersville?
What is the month with the lowest UV index in Jennersville?
How high is the UV index in January in Jennersville?
Average temperature in January
Jennersville, PA
- Average high temperature in January: 36.9°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in January: 24.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in January
Jennersville, PA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Jennersville, PA
- Average wind speed in January: 8.7mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in January
Jennersville, PA
- Average humidity in January: 76%
The months with the highest relative humidity are February, May, September, October and December (79%).
The months with the lowest relative humidity are March and April (75%).
Average rainfall in January
Jennersville, PA
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is August (1.93").
The driest months (with the least rainfall) are January, September and November (0.87").
Average rainfall days in January
Jennersville, PA
- Average rainfall days in January: 5.9 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in January
Jennersville, PA
- Average snowfall in January: 1.18"
The month with the highest snowfall is March (1.26").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Jennersville, PA
- Average snowfall days in January: 5.1 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jennersville, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Jennersville, PA
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in January
Jennersville, PA
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Jennersville, PA
- Average cloud cover in January: 45
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Jennersville, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Jennersville, Pennsylvania, USA
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